One of the five men convicted for the brutal killing Sydney nurse Anita Cobby more than 30 years ago has been attacked in a NSW prison.
Gary Murphy, now 61, was assaulted at Long Bay Correctional Complex on Tuesday morning, a Corrective Services NSW spokeswoman said.
He was taken to hospital where he remained in a stable condition on Tuesday night.
"A number of possible assailants have been identified," the spokeswoman said
Murphy was 28 when he was found guilty in 1987 of raping and killing Ms Cobby, along with his brothers Leslie and Michael Murphy, Michael Murdoch and John Travers.
Their crimes in February 1986 provoked public outcry and calls to bring back the death penalty.
Instead, they were all were sentenced to life in prison, never to be released. Michael Murphy died in jail in February of this year after reportedly suffering liver cancer.
Ms Cobby, 26, had been walking home from Blacktown train station when the men dragged her into a stolen Holden Kingswood.
They drove her to a secluded paddock where she was raped and beaten, then had her throat slit and was left to bleed to death.
Ms Cobby's father was given the horrifying task of identifying his daughter's body after it was discovered in a paddock two days later.
The CSNSW spokeswoman on Tuesday said they were helping police investigate Murphy's assault, which occurred about 10.20am at the prison's Metropolitan Special Programs Centre.
He is believed to have been moved to Long Bay from Goulburn Correctional Centre within the last week.
Australian Associated Press